Liira, Helena
Mavaddat, Nahal
Eineluoto, Maija
Kautiainen, Hannu
Strandberg, Timo
Suominen, Merja
Laakkonen, Marja-Liisa
Eloniemi-Sulkava, Ulla
Sintonen, Harri
Pitkälä, Kaisu
Funding for this research was provided by:
University of Western Australia
Article History
Received: 25 October 2017
Accepted: 13 January 2018
First Online: 29 January 2018
Compliance with ethical standards
:
: HS is the developer of the 15D instrument and obtains royalties from the electronic versions of the instrument. Otherwise, the authors declare no conflict of interest that could be perceived as prejudicing the impartiality of the research reported.
: Local ethics committees approved the study protocols of each individual study.
: Written informed consent was obtained from all participants or, in the event of cognitive impairment, from the participant’s closest proxy prior to study participation.